Just used it again today when some service asked me to use one of these generic 2FA OTP token apps. It first recommended the Microsoft one but that one literall

Just used it again today when some service asked me to use one of these generic 2FA OTP token apps. It first recommended the Microsoft one but that one literally wouldn't work unless you accept transmitting usage data, for a kind of app that is both calculator-levels of complexity and uniquely ill suited to transmitting any data. Found something simple and perfectly good working on FDroid.